Pith Number

pith:IG55VLJU

pith:2018:IG55VLJUBFQ5SSMKQ5U4NCIABQ

not attested not anchored not stored refs pending

Convex Regularization and Representer Theorems

Antonin Chambolle, Claire Boyer, Fr\'ed\'eric de Gournay, Pierre Weiss, Vincent Duval, Yohann De Castro

arxiv:1812.04355 v1 · 2018-12-11 · math.OC · cs.IT · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IG55VLJUBFQ5SSMKQ5U4NCIABQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:58:32.448240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41bbdaad340961d9498a8769c689000c28e01405e9525c91ede528d032d3fea1

Aliases

arxiv: 1812.04355 · arxiv_version: 1812.04355v1 · doi: 10.48550/arxiv.1812.04355 · pith_short_12: IG55VLJUBFQ5 · pith_short_16: IG55VLJUBFQ5SSMK · pith_short_8: IG55VLJU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/IG55VLJUBFQ5SSMKQ5U4NCIABQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 41bbdaad340961d9498a8769c689000c28e01405e9525c91ede528d032d3fea1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5b9911331f64fcc37a8b500311c94ed4b6cf39e4be6c3e87d928088747aa5c0",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-12-11T12:30:40Z",
    "title_canon_sha256": "e190e26a712ac102f3ee225e20b58b5ed762302b3b7d08157202e2779df12659"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04355",
    "kind": "arxiv",
    "version": 1
  }
}